| Aurak AS | Professional & scientific | 2015 |
| Aurora Green Genesis AS | Professional & scientific | 2026 |
| Austbø-Holding AS | | 2021 |
| Austbøsletta 5 AS | Real estate | 2015 |
| Austhagen 1 AS | Real estate | 2019 |
| Austhagen Holding AS | Real estate | 2019 |
| Austhagen Invest AS | Real estate | 2022 |
| Austinvest AS | Real estate | 2018 |
| Austrått Bygg AS | Construction | 2005 |
| Austrått Utvikling AS | Real estate | 2014 |
| Austvoll Tre & Design AS | Manufacturing | 1998 |
| Auto 2000 AS | Other services | 1980 |
| Auto 2000 Eiendom AS | Real estate | 1996 |
| Auto Center Rogaland AS | Other services | 2016 |
| Auto Cristal Group AS | Wholesale & retail | 2026 |
| Auto Drive AS | Other services | 2018 |
| Auto-V AS | Wholesale & retail | 2022 |
| Autoblikk AS | Information & communication | 2024 |
| Autofoni Ans | Wholesale & retail | 1999 |
| Autograf AS | Professional & scientific | 2015 |
| Autoland Rogaland AS | Wholesale & retail | 2012 |
| Automotive Bilsalg AS | Wholesale & retail | 2024 |
| Automoto AS | Wholesale & retail | 2023 |
| Autorental AS | Administrative & support | 2017 |
| Autoringen Rogaland AS | Wholesale & retail | 2019 |
| Autoteam Bilutleie AS | Administrative & support | 1986 |
| Autoteam Sport AS | Other services | 1987 |
| Av-Prosjekt AS | Wholesale & retail | 1993 |
| Avat Holding AS | Wholesale & retail | 2016 |
| Avbricks AS | Wholesale & retail | 2020 |
| Avibil AS | Wholesale & retail | 2018 |
| Avløysaren AS | Administrative & support | 2013 |
| Avløysarlaget Nord-Jæren SA | Agriculture & fishing | 1995 |
| Awg-Tech AS | Professional & scientific | 2024 |
| Awreka AS | | 2022 |
| Aws Invest AS | | 2020 |
| Awsm AS | Information & communication | 2021 |
| Axelar AS | Professional & scientific | 2013 |
| Axflow Sandnes AS | Wholesale & retail | 1996 |
| Axios Norway AS | Administrative & support | 2024 |
| Alf I. Larsen A/S | Wholesale & retail | 1988 |
| AmCar Verksted A/S | Other services | 1987 |
| B B Aase AS | Construction | 1991 |
| B E Transport Da | Transport & logistics | 2004 |
| B Kvia Holding AS | Financial services | 2018 |
| B Ydstebo Holding AS | | 2026 |
| B&V Kartservice AS | Wholesale & retail | 1988 |
| B&V Motorservice AS | Wholesale & retail | 2024 |
| B. Sørensen Holding AS | Real estate | 2014 |
| B.E. Energy AS | Professional & scientific | 2021 |
| B.E. Holding AS | Wholesale & retail | 2014 |
| B.E. Trading AS | Wholesale & retail | 2014 |
| B.Voll & Sønn AS | Transport & logistics | 2007 |
| Baah Invest AS | Financial services | 2011 |
| Baante Holding AS | Real estate | 2021 |
| Baasi Holding AS | | 2019 |
| Babcock Norge AS | Education | 2025 |
| Babycare Detalj Stavanger AS | Wholesale & retail | 2019 |
| Babyshop Ans | Wholesale & retail | 1988 |
| Baderomseliten AS | Construction | 2017 |
| Badeshorts Invest AS | | 2020 |
| Badgerface AS | | 2020 |
| Baiba Meiere AS | Other services | 2024 |
| Baico Engineering Ans | Professional & scientific | 2006 |
| Bakerhjørnet AS | Manufacturing | 2014 |
| Bakerhjørnet Langgata AS | Manufacturing | 2021 |
| Bakernes Paradis AS | Hospitality | 2007 |
| Bakken 58B Da | Real estate | 2016 |
| Balanz Forus AS | Arts & recreation | 2011 |
| Balanz Hana AS | Education | 2023 |
| Balanz Trening AS | Wholesale & retail | 2021 |
| Balder & Co AS | Wholesale & retail | 2026 |
| Bale AS | | 2008 |
| Balkan Bakeri AS | Manufacturing | 2023 |
| Bams Holding AS | Real estate | 2012 |
| Banda Sandnes AS | Wholesale & retail | 2026 |
| Bang Rangen Enterprises AS | | 2018 |
| Banken Pub AS | Hospitality | 2022 |
| Bar 33 AS | Hospitality | 2021 |
| Baraka Eiendom AS | Other services | 2009 |
| Barba AS | Information & communication | 2015 |
| Barba Marine AS | Professional & scientific | 2023 |
| Barca Food AS | | 2023 |
| Barcelona AS | Real estate | 2016 |
| Barents Blue AS | Professional & scientific | 2023 |
| Barents Clean Ammonia AS | Manufacturing | 2025 |
| Barntex AS | Real estate | 1983 |
| Barntex Holding AS | Real estate | 1990 |
| Barokk Sandnes AS | Other services | 2008 |
| Bartec AS | Manufacturing | 1999 |
| Bartertown AS | Education | 2022 |
| Bas AS | | 2021 |
| Basecode AS | Information & communication | 2025 |
| Basetech Da | Information & communication | 1999 |
| Basha Holding AS | Real estate | 2019 |
| Basil Holding AS | Professional & scientific | 2005 |
| Bastler AS | Wholesale & retail | 2017 |
| Bataroyes Invest AS | Real estate | 2016 |
| Bauge AS | Professional & scientific | 2012 |
| Baut Prosjektering Botne AS | Professional & scientific | 2023 |